baber/WOPTO huggingface dataset:
Patent GB-986686-A (GB)
Title: Non-woven fabric, a method of making it, and articles made therefrom
Inventor: WHYTLAW GRAEME GARDNER
IPC: D04H13/00
Filed: 1962-03-05
Abstract: A web of carded or combed fibres 15 is fed into the nip of rollers 19, 21 where it is brought into contact with a continuous non-fibrous thermoplastic film 23.  The fibres are then needle punched through the film by conventional means at 25 and are retained therein by the jagged edges of the perforations made by the barbed needles 27.  The fabric so formed is then ready for use but for greater strength the fibres are more closely bonded to the film.  This may be done by adhesives such as rubber or asphalt or by softening the film with a solvent or, preferably, by heating the film to soften it and cause it to flow into more intimate contact with the fibres.  In Fig. 1 this heat treating is accomplished by passing the fabric through a chamber 29 where it is treated by a heated fluid e.g. air, steam or a liquid. In Fig. 4 the fabric passes between circulating, endless, metal band 37 heated at 47.  The separation of the bands is adjustable so that the fabric may be compressed to a predetermined extent while the film softening is in process.  The bands may be unbroken, or be of fine mesh in which case heating may be hot air.  The bands may also have openings or projections to emboss the fabric during treatment. Heated pressure plates may, alternately, be used.  The fibres may be treated e.g. dyed or roughened before punching and fibres of different colours may be used to form a pattern: the stroke of the needles may be varied to vary the depth of pile over the fabric. Fibres may be punched into the film from both its sides.  The film may be vinyl resins (e.g. polystyrene, polyvinylchloride, polytetrafluorethylene and polyvinyl butyral), polyamide resins (e.g. nylon) or polyolefine resins (e.g. polyethyline or polypropylene). The fibres may be natural (e.g. cotton, linen, wool or silk) or artificial (e.g. the above resins or cellulosic fibres such as rayon): mineral fibres such as glass or metal or combinations of natural and synthetic fibres may also be used.  The fabric of the invention may be used e.g, for upholstery, floor coverings, bedding articles, bandages, diapers, towels, raincoats, hats, umbrellas and footwear.
Patent GB-1346023-A (GB)
Title: Turbine engines or compressors and more particularly axial flor compressors
IPC: F01D7/00
Filed: 1972-02-24
Abstract: 1346023 Axial flow compressors SOC NATIONALE D'ETUDE ET DE CONSTRUCTIONS DE MOTEURS D'AVIATION 24 Feb 1972 [25 Feb 1971] 8589/72 Headings F1C and FIT In a turbine engine or axial-flow compressor each blade of a set forming a stage is oscillationed about a radial axis to increase the performance of the stage by the Katzmayr effect. The frequency and/or amplitude of the oscillations are controlled in accordance with the reduced rotation speed N/#T and/or the ratio of downstream to upstream pressures P 2 /P 1  of the stage. The stator and/or rotor blades of one or more stages may be oscillated. As shown in Fig. 1 controller 9 for electric motor 8 receives signals 10, 11 according to P 2 /P 1  and N/#T values and causes motor 8 to provide an oscillatory rotary motion of corresponding amplitude and frequency which is transmitted to the blade 2 via shafts, pinions and crown wheel 6. In Fig. 2 the blade is oscillated through a rack 20a and pinion 19. The rod 20 is reciprocated by co-operating cam surfaces 22, 22a provided on plates 23, 23a which are rotated by motor 25. In Fig.4 rod 29 and blade root 27 are provided with corresponding large pitch threads so that when the rod reciprocates radially due to its inner end 29b engaging a rotating eccentrically arranged annular groove 31, the blade 2 oscillates pivotally. (For Figures see next page)
Patent GB-179753-A (GB)
Title: Improvements in or relating to the production of amino-phenols or aromatic amino-acids
IPC: C07C215/76
Filed: 1921-03-19
Abstract: Aminophenols and aromatic amino acids are obtained by reduction of corresponding nitro- or azo-compounds by sulphuretted hydrogen in the presence of an alkaline carbonate; the sulphuretted hydrogen may be employed in the form of waste gases, such as those coming from ammonia scrubbers in the manufacture of ammonium p  compounds. According to examples the following bodies are obtained by reduction in hot sodium carbonate solution with a gas containing about 15 per cent of sulphuretted hydrogen:-aminosalicylic acid and aniline from benzene-azosalicylic acid (the solution obtained by coupling diazobenzene solution with salicylic acid may be directly reduced); aminosalicylic acid and p-chloraniline from p-chlorobenzeneazosalicylic acid; 5-aminosalicylic acid from 5-nitrosalicylic acid; p-aminophenol and aniline from benzene-azophenol; aminosalicylic acid and p-phenylene diamine from Alizarin yellow R (p-nitrobenzene-azosalicylic acid).  The reduction of phenol-azophenetole, Brilliant orange R, Orange II., and Chrysamine G is also mentioned.  Specification 5697/97 is referred to.
Patent GB-801285-A (GB)
Title: Improvements in or relating to lever design for spring-loaded clutch
IPC: F16D13/71
Filed: 1956-03-20
Abstract: 801,285. Friction clutches. BORG-WARNER CORPORATION. March 20, 1956 [March 21, 1955], No. 8636/56. Class 80 (2). In a friction clutch of the type in which a driving flywheel 11 and a pressure plate 14 are engaged by spring means (not shown) with a driven disc 12, each of the usual radial disengaging levers 25 is connected to the pressure plate and to a cover plate 10 by a pair of pins 32, 33, the pins passing through holes 29, 28 in each lever and through a hole 20 in a supporting bolt 19, the holes 29, 28, 20 having flat side surfaces A, B, C engaging the pins 32, 33 so that movement of the radial levers 25 to disengage the clutch causes the pins to roll along these flat surfaces. Friction during movement of the radial levers 25 is thereby materially reduced. Each pin 32 is fast between pairs of lugs 15 integral with the pressure plate 14, and the ends of the pins 33 slide between the lugs. The holes 29, 28, 20 are of sufficiently elongated shape to allow movement of the pins 32, 33 relatively lengthwise of the levers 25. The support bolts 19 are mounted in the cover 10 by nuts 18 which are resiliently connected to the cover by Belleville washers 23 to prevent rattle &c. In a modification, Figs. 4-6 (not shown), a U- shaped spring clip replacing the Belleville washer 23 is connected between each of the support bolts and a projection on the associated radial lever 25 to prevent rattle.
Patent GB-225807-A (GB)
Title: Improvements in blocks or sheets for paving and like impact or load-receiving purposes
IPC: E01C5/18
Filed: 1924-04-07
Abstract: 225,807. Rubber Latex Research Corporation, (Assignees of Wescott, W. B.). Dec. 5, 1923, [Convention date]. Compound or composite blocks; paving blocks.-Paving blocks consist of rubber and comminuted tyre stock or of an assemblage of rubber and cotton fibres between half an inch and one and a half inches in length, part of the rubber in each case being latex rubber, and a horizontally placed reinforcement 3 is provided near the lower face. The reinforcement may be of wire mesh or, for parquetry purposes, of woven jute or cotton fabric, and orifices 7 may extend from the upper face to the reinforcement. The blocks are attached to a wooden foundation by means of drive-screws 9 passing through the holes 7. Washers 4 are moulded on top of the reinforcement. The spaces above the screws are closed by rubber plugs 10. Where the foundation is of concrete, wooden sleepers may be inset in the foundation to receive the screws or the blocks may be screwed direct to the concrete. For obtaining the long cotton fibres desired, comminuted tyre stock, scrap from belting &c. is employed, such material being screened and impregnated with rubber latex. The tyre stock used has generally equal quantities of rubber and cotton and the amount of latex rubber is not less than 10 per cent nor more than 15 per cent of the whole cotton-rubber mass. The part below the reinforcement may be of hard rubber or it may have incorporated hard rubber in the form of buffings. Specification 236,624, [Class 70, India-rubber &c.], is referred to.
Patent GB-878883-A (GB)
Title: Improvements in or relating to interval timing mechanisms
IPC: G04F3/08
Filed: 1959-03-13
Abstract: 878,883. Time switches; switch cases. MIDGLEY, A. M. Feb. 9, 1960 [March 13, 1959], No. 8746/59. Class 38 (5). Internal timing mechanism for operating a switch or gas valve, which may be as in Specification 867,145, is enclosed in a dust and moisture proof casing comprising a rubber cup 5 having a flange 7 to hold a glass front 8 which is retained by an annular bezel 11 having tongues 12 bent over the rear edge of the flange 7. A felt washer 14 is secured to the glass 8 as a seal around the control spindle 16.
Patent GB-287719-A (GB)
Title: Improvements in valves
IPC: F16K31/122
Filed: 1927-03-30
Abstract: 287,719. Perrett, I. G. March 30, 1927. Valves controlled by pilot or relay valves closure members. - A valve device, particularly applicable for use as a supply or drain valve on washing machines of the kind actuated by a piston or the like and provided with a pilot valve to . facilitate opening has the lower part of the casing a provided with a detachable cover plate m adapted to provide a guide socket m<1> for the lower end l<2> of the valve spindle i. The main valve comprises a disc e secured to a valve member e<1> having a peripheral flange e<2> by a nut k screwed to a tubular boss e<3>notched at e<4>. The nut has a notched edge and is provided with guide wings k<1> engaging the seat opening. The pilot valve is mounted on the spindle i and co-operates with a flange e<5> on the main valve. The actuating cylinder f is mounted on a boss f<1> on the casing and contains a piston g acted on by a spring j and connected to the spindle i which is provided with a collar adapted to engage the notched end of the boss e<3>. The pressure on top of the actuating piston is controlled by a three-way cock. The exhaust and the underside of the piston may be connected with the main outlet. The top of the cylinder may be fitted with a removable cover provided with a push button packed by a flexible diaphragm for manually actuating the main or pilot valves.
Patent GB-295205-A (GB)
Title: Improvements in and relating to pumping apparatus and machinery
IPC: F01L25/04
Filed: 1928-03-22
Abstract: 295,205. Wells, J. E. March 22, 1928. Actuating by liquid pressure; diaphragm pumps.-Two diaphragm pumps 1, 2 are alternately actuated by liquid supplied to the upper sides of the diaphragms by a pump 15. The liquid passes to and fro between the pump 15 and the pumps 1, 2 through pipes 17, 23 and channels 20, 21, 22 controlled by a slide valve 19, which may be operated by hand or automatically. The automatic operation is effected by a piston 28 on the valve spindle exposed alternately on opposite sides to the delivery pressure of the pump 15 at the ends of the delivery strokes of the diaphragms. A tumbler weight 39 regulates the movement of the valve.
Patent GB-1080443-A (GB)
Title: Improvements in or relating to methods and apparatus for mixing finely divided materials
IPC: B01F27/91
Filed: 1963-03-05
Abstract: 1,080,443. Mixing glass-components. PILKINGTON BROS. Ltd., and D. WILDE. Feb. 21, 1964 [March 5, 1963], No. 8787/63. Heading B1C. Apparatus for mixing the particulate components of a glass batch comprises blades 3 mounted along the length of a vertical rotary shaft 2 and disposed so as to apply to the particles adjacent the shaft a downward thrust causing an upward escape movement in the circumferential region of the container 1. In one embodiment (Fig. 1) the shaft 2 is eccentrically disposed in the container and successive sets of blades are angularly staggered about the shaft axis. In a second (Fig. 3 not shown) in which the shaft is coaxial with the container, each blade is fixed to the shaft by a stalk and the blades are helically arranged around the shaft. The components are fed into the container through a valve 11 from a bin 10 fitted with a vibrator 12 and discharge is controlled by a valve 14. Continuous mixing may be effected by arranging three containers in series with the outlet from each adjacent the top thereof. The blades may be of glass and the container may be glass-lined. The components may be fluidised by forming the container bottom from porous material, e.g. sintered metal and introducing air therethrough.
Patent GB-1179673-A (GB)
Title: A Process for the Production of Sebacic Acid
Inventor: FREIDLIN GILYA NAUMOVICH
IPC: C07C51/09
Filed: 1968-02-23
Abstract: 1,179,673. Sebacic acid. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT MONOMEROV. 23 Feb., 1968, No. 8827/68. Heading C2C. [Also in Division C7] A process for the production of sebacic acid comprises producing dimethyl sebacate by the electrolytic condensation of monomethyl adipate in methanol medium in the presence of an alkali metal monomethyl adipate, e.g. sodium monomethyl adipate, stripping off methanol from the mixture of electrolytic condensation products thus obtained, allowing the mixture to separate into an ester layer containing dimethyl sebacate and a layer containing the alkali metal monomethyl adipate, converting the dimethyl sebacate contained in the ester layer into sebacic acid by a two-stage hydrolysis step comprising hydrolysis using water at a temperature above 100‹ C. under superatmospheric pressure, and the amount of water added being not less than five times the weight of ester present, and hydrolysis using an aqueous solution of a mineral acid, e.g. nitric acid, and recovering the sebacic acid thus formed, e.g. by recrystallization from water. The sebacic acid formed may be purified with activated carbon. The starting material monomethyl adipate may be produced from adipic acid by esterification with methanol in the presence of dimethyl adipate. The methanol, alkali metal monoethyl adipate and the mineral acid used may be recycled.
Patent GB-743494-A (GB)
Title: Improvements relating to polyester resin
Inventor: CUNNINGHAM ANTHONY DAVID
IPC: C08K3/00
Filed: 1953-03-31
Abstract: The storage life of a liquid polyester resin catalysed with an organic peroxy compound is increased without adversely affecting the heat-hardening properties of the resin, by adding an acidic or basic inhibitor in sufficient concentration to prevent polymerization within the desired storage period, and substantially removing the inhibitor by passing the resin through an ion exchange resin immediately before subjecting it to a heat-hardening process.  In the example a composition comprising a resin derived from ethylene glycol and maleic anhydride, styrene, t-butyl perbenzoate and picric acid is passed through an aminopolymerizate of a mixture of divinyl benzene and styrene to remove the picric acid inhibitor.
Patent GB-963855-A (GB)
Title: Manufacture of semi-conductor diodes
Inventor: COLLIER GODFREY
IPC: H01L21/304
Filed: 1962-03-08
Abstract: 963,855. Semi-conductor devices. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. Jan. 21, 1963 [March 8, 1962], No. 8931/62. Heading H1K. A method of manufacturing a semi-conductor diode comprises the steps of, forming a blank having opposed planar faces between which extends a peripheral face, the blank being formed of a substance of one conductivity type, diffusing a substance of opposite conductivity type into the blank, removing from one planar face of the blank material to a depth at least equal to the depth of diffusion and thereafter soldering a base contact 7 to the opposite planar face of the blank such that the solder forms a fillet 9 between the peripheral face and the contact.
Patent GB-1247591-A (GB)
Title: Improvements in and relating to apparatus for feeding sheet material
Inventor: FRENCH LIONEL JOHN BRYANT RUSH
IPC: B65H9/06
Filed: 1969-02-19
Abstract: 1,247,591. Feeding sheets. SULBY ENG. DEVELOPMENT CO. Ltd. 9 Feb., 1970 [19 Feb., 1969], No. 9027/69. Heading B8R. A front stop 14 is normally held in a raised position above a sheet feed table 1 by a support member 8 which engages a surface 9a of a pivoted lever carrying the stop. Withdrawal of the support, e.g. actuation of a solenoid 6 permits the spring biased lever to retract the stop and raise feed roller 11 into engagement with a driven roller mounted on a shaft 3. Sheets 16 may be manually aligned against stop 14 or fed to this position by an automatically operating feeder responsive to the absence of a sheet over photo-cell 18. The photo-cell may be replaced by a sensing pin resting on table 1.
Patent GB-799806-A (GB)
Title: Improvements in or relating to paper feed devices
IPC: B65H1/04
Filed: 1956-03-22
Abstract: 799,806. Feeding sheets. ROSS, H. H. Feb. 12, 1957 [March 22, 1956], No. 9043/56. Class 100(1) A sheet feeding device comprises a support 8 for a stack of cards 10, an abutment 6 to prevent movement of the cards in one direction, spring means 17 attached transversely of an arm 12 so that one end of the arm can pivot to rest upon the topmost card of the stack and so that the arm is movable across the stack towards the abutment 6 with consequent deformation of the spring means, and means on the arm for frictionally gripping the topmost card of the stack. A number of supports may be superposed on one another, each support being provided with its own arm 12. Spring means 17 may consist of twisted elastic and is secured to the arm 12 and to flanges 7 of the card supports. If desired the spring 17 may bias the free end of the arm 12 into contact with the stack of sheets. The arm 12 consists of a limb 13 and a cross piece 14 around which is stretched a rubber band 15. To feed a sheet the end 16 of the limb 13 is pushed in the direction of the arm A and then released. Specification 750,467 [Group XV] is referred to.
Patent GB-381486-A (GB)
Title: Process for coating metal bodies with one or more alkaline earth carbonates
IPC: C25D13/02
Filed: 1932-03-30
Abstract: 381,486. Electrolytic deposition of' alkaline earth metal carbonates. VEREINIGTE GLœHLAMPEN UND ELECTRICIT€TS AKT.-GES., Ujpest, near Budapest. March 30, 1933, No. 9156. Convention date, April 22, 1931. [Class 41.] Metallic bodies, particularly incandescent cathodes for electric discharge tubes, are coated with one or more alkaline earth metal carbonates by treatment as anodes in a solution containing alkaline earth metal salts of organic acids, preferably formic acid. An alkaline earth metal hydroxide is preferably also present. Direct or alternating current may be employed ; the latter may be of low periodicity, but a periodicity of 500 cycles is advantageous. Carbon dioxide and hydrogen are evolved and, when salts of acids other than formic acid are employed, other products such as hydrocarbons and alcohols may be formed. A detailed example for the deposition of barium carbonate is given. The coating on an incandescent cathode is converted into oxide by heating during the pumping process.
Patent GB-1365393-A (GB)
Title: Clutch withdrawal bearing assemblies
IPC: F16D25/08
Filed: 1971-04-13
Abstract: 1365393 Clutch release bearing SKF (UK) Ltd 28 March 1972 [13 April 1971 3 Sept 1971] 9244/71 and 41245/71 Heading F2L In an hydraulically operated clutch the withdrawal bearing 53 is attached directly to a plunger 47 moveable by the fluid pressure in a chamber 38, there being a flexible diaphragm 48 extending around the back of the plunger 47 and sealing the chamber. A spring 57 continuously biases the plunger so that the bearing ring 56, which forms the clutch operating member, is permanently in engagement with, and rotating with, the clutch. The embodiment shown has an annular plunger 47 and diaphragm 48, the output member of the clutch passing through the central opening, but the annular members may extend completely across in the case of a clutch for a front wheel drive vehicle (Figs. 1 and 2, not shown). In this latter case the rotating withdrawal bearing race may have a member attached to it which operates the clutch and either outer or inner races may rotate, the plunger operating on the other, stationary, race. In the embodiment shown a tubular metal member may be attached to race 56 to operate the clutch. The fluid pressure is supplied from a pedal operated master cylinder.
Patent GB-724831-A (GB)
Title: Improved expansion valve mechanism for refrigeration apparatus
IPC: F25B41/06
Filed: 1953-04-07
Abstract: 724,831. Refrigerating. GENERAL MOTORS CORPORATION. April 7, 1953 [April 18, 1952], No. 9313/53. Class 29. [Also in Group XXIX] An expansion-valve for refrigerators comprises a valve seat 27 located between the outlet chamber 28 and the inlet 22, thermostatic valve operating means, e.g. the phial 38 and diaphragm 30, for a valve support 44 carrying a capsule or diaphragm 46, on which is mounted the valve closure member 56, the capsule being charged with volatile liquid having a steeper pressure-temperature curve than the refrigerant so that above a predetermined temperature, the capsule tends to close the valve. The diaphragm 30 moves the support against the adjustable spring 66 through rods 42 and is exposed to outlet chamber pressure via passage 68 or evaporator outlet pressure. The capsule is charged with volatile liquid through a tube 59 and above the predetermined temperature expands against the resiliency of the diaphragm 46, or a spring and the outlet pressure acting around the closure member on the top of the diaphragm.
Patent GB-940202-A (GB)
Title: Improved method and apparatus for the welding together of aligned tubes or pipes
IPC: B23K9/028
Filed: 1960-03-17
Abstract: 940,202. Welding by fusion. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 17, 1960 [March 20, 1959], No. 9455/60. Heading B3R. In arc welding pipes end to end a contact electrode is moved round the seam in engagement with the pipe ends. Clamping jaws 5, 6 manually operated through worm gears 13 and mounted at each end of a U-shaped frame 1 grip the pipes 2, 3 to be welded at the joint 4. Interconnected plates 19, 20 secured to the frame 1 carry an electric motor 39 and a housing 21 journalling rollers 22 rotatably supporting a disc 24. Rigidly secured to the disc 24 are a gear 27 meshing with spaced gears 31 driven by the motor 39 and a slip-ring 40 coacting with spaced brushes 44. Sleeves 61 slidable against the action of springs 69 on pins 63 in the gear 27 carry members 59, 60 between which is journalled a block 56 supporting guide rails 52, 53 for the electrode carriage 48. The electrode 47 held by a screw 46 in the carriage 48 is pressed by a spring 51 against the seam 4. Recesses are provided in the various parts to enable the apparatus to be removed laterally of the pipes 2, 3. The motor 35 is started by remote control and a first weld 86, Fig. 9, is deposited by a complete revolution of the electrode holder, whereupon a cam 76 rotating at half-speed actuates a bell-crank 72 to raise the members 59, 60 supporting the electrode 47 so that a second weld 87 is deposited above the first. For the welding of horizontally disposed pipes, the angle that the electrode 47 makes with the seam may be varied by a cam follower 90 controlled by a cam 93 and acting through gears 88, 89 to turn the block 56 carrying the guide rails 52, 53. The motor 39 is automatically disconnected when the weld is completed. The electrode has a semi-conductive coating containing iron powder.